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Finding the Fourth Proportional to 488,568.80, 732,853.20 and 208,114.40

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Solution

The fourth proportional to 488,568.80, 732,853.20 and 208,114.40 is: 312,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,568.80 : 732,853.20 = 208,114.40 : x
  2. Step 2: Convert to fraction form
    488,568.80/732,853.20 = 208,114.40/x
  3. Step 3: Cross multiply
    488,568.80x = 732,853.20 × 208,114.40
  4. Step 4: Simplify right side
    488,568.80x = 152,517,304,006.08
  5. Step 5: Solve for x
    x = 152,517,304,006.08/488,568.80
  6. Step 6: Final answer
    x = 312,171.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.